There are 3 Models with model number 320 in the database
Nickel case style 2 baby Ben with plain dial. Starting in 1930, the dial no longer said DeLuxe.
Dates made: July 1927 - 1932
Butler (brushed) nickel finish, off-white dial with embossed gold leaf numerals.
Dates made: 1930 - 1932
Westclox "Bluenose" man's wristwatch, 7 jewel, chrome case, raised 3, 6, 9, 12 and hour markers, chrome plated expansion ...
Dates made: 1965 - ?